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Open-source H3 video upscaler slashes rendering time fourfold
What is Open-H3-Regenerate-2K?
The model accepts a 768 p video draft and upscales it to 2560×1440 (1440 p) with a three-step refinement pass. Using a custom attention engine and a fast VAE decoder, it runs up to 3.9× faster than the closed H3-Regenerate-2K API.
Who it is for
Researchers, indie creators, or studios that need high-resolution video generation can now get H3-quality upscaling on a single GPU without paying for the proprietary service.